22254739500 has 192 divisors, whose sum is σ = 74398012416. Its totient is φ = 5063846400.

The previous prime is 22254739459. The next prime is 22254739511. The reversal of 22254739500 is 593745222.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2378832 + ... + 2388168.

It is an arithmetic number, because the mean of its divisors is an integer number (387489648).

Almost surely, 2^22254739500 is an apocalyptic number.

22254739500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22254739500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37199006208).

22254739500 is an abundant number, since it is smaller than the sum of its proper divisors (52143272916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22254739500 is a wasteful number, since it uses less digits than its factorization.

22254739500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9593 (or 9581 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 22254739500 in words is "twenty-two billion, two hundred fifty-four million, seven hundred thirty-nine thousand, five hundred".